Semester Test 2024**

Front

What is Newton's 1st Law of Motion?

Back

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force.

Front

What is an unbalanced force?

Back

A force that causes an object to accelerate, change direction, or change shape.

Front

How do you calculate power?

Back

Power = Work done / Time taken.

Front

If you do 90 joules of work in 30 seconds, what is your power output?

Back

30 watts.

Front

What is the formula for calculating work?

Back

Work = Force x Distance.

Front

If you move an 8-newton weight five meters in 4 seconds, how much power do you generate?

Back

10 watts.

Front

What is a control variable in an experiment?

Back

A variable that is controlled and stays the same between experiments.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not cause a change in motion, while unbalanced forces do.

Front

What is the unit of power?

Back

Watt (W).

Front

What does it mean for a force to be 'pushing'?

Back

A pushing force is applied in a direction away from the object.